So this is what the judges do behind the scenes of The X Factor!
Britney Spears proved she's still got singing skills when she serenaded fellow judge L.A. Reid with a birthday cake on the Sept. 19 episode. The music producer had turned 56 on June 7, during the Kansas City auditions.
When Brit brought out the birthday confection, L.A. gushed, "Oh, you're the sweetest thing in the world!"
Demi Lovato was there, too, digging into the cake with her co-judges and even posing for pictures with the birthday boy. Unfortunately for Simon Cowell — who was out sick that day — he missed out on all the fun!
The "Till the World Ends" singer was also accompanied by her fiancé, Jason Trawick. The couple got engaged in December 2011, and we can't wait to hear what music Britney will have at their wedding!
Check out her rendition below.
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